11946812064 has 72 divisors (see below), whose sum is σ = 34470535680. Its totient is φ = 3620242560.

The previous prime is 11946812063. The next prime is 11946812071. The reversal of 11946812064 is 46021864911.

It is not an unprimeable number, because it can be changed into a prime (11946812063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502624 + ... + 525855.

It is an arithmetic number, because the mean of its divisors is an integer number (478757440).

Almost surely, 2^11946812064 is an apocalyptic number.

It is an amenable number.

11946812064 is an abundant number, since it is smaller than the sum of its proper divisors (22523723616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11946812064 is a wasteful number, since it uses less digits than its factorization.

11946812064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028514 (or 1028495 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 11946812064 in words is "eleven billion, nine hundred forty-six million, eight hundred twelve thousand, sixty-four".